Then the word of the Lord came to Jonah a second time:
"Get up! Go to the great city of Nineveh and preach the message that I tell you."
So Jonah got up and went to Nineveh according to the Lord's command. Now Nineveh was an extremely large city, a three-day walk.
Jonah set out on the first day of his walk in the city and proclaimed, "In 40 days Nineveh will be overthrown!"